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Finding the Fourth Proportional to 40,942.44, 61,414.42 and 12,861.97

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Solution

The fourth proportional to 40,942.44, 61,414.42 and 12,861.97 is: 19,293.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,942.44 : 61,414.42 = 12,861.97 : x
  2. Step 2: Convert to fraction form
    40,942.44/61,414.42 = 12,861.97/x
  3. Step 3: Cross multiply
    40,942.44x = 61,414.42 × 12,861.97
  4. Step 4: Simplify right side
    40,942.44x = 789,910,266.03
  5. Step 5: Solve for x
    x = 789,910,266.03/40,942.44
  6. Step 6: Final answer
    x = 19,293.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.